Troubleshooting
When any malfunction is occurred, immediately switch off the power supply to the unit, and contact the local
dealer, if necessary. Some simple trouble shooting tips are given below.
SYMPTOMS POSSIBLE CAUSES REMEDIAL ACTION
1. Compressor does not start
x No power supply.
x Fuses blown or automatic
circuit breakdown open.
x Defective contactor or coil.
x Unit is stopped because a
safety has tripped.
x Loose wires.
x Compressor faulty.
x Check power supply.
x Look for short circuit or
grounded wires in motor
windings. Replace fuses
and reset circuit breakers
when the fault has been
corrected. Check tightness
and soundness of all
electrical connections.
x Repair or replace.
x Determine the type of
safety shut down and
correct the default before
the unit is restarted.
x Check wire connections and
tighten terminal screws.
x Contact local dealer.
2. Fan does not work
x No power supply.
x Fan motor faulty.
x Check power supply.
x Contact local dealer.
3. Air conditioner does work, but
insufficient cooling.
x Thermostat setting too high.
x Condenser coil dirty.
x Obstacle blocking air inlet or
outlet of the unit.
x Insufficient refrigerant in the
system.
x Improper water flow rate.
x Water in the system is
contaminated.
x Reset thermostat
x Contact local dealer.
x Remove the obstacle.
x Contact local dealer.
x Contact local dealer.
x Contact local dealer.
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